Improvement in locks for spinning-fliers



J. B. THORWARTH a M. HARRISON.- Look for Spinning Pliers.

' No. 209,727. Patentel Noyf 51878.

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UNITED STATES PATENT OEEIOE.

JOHN B. TEOEWAETE AND MIKE EAREISONOE BROOKLYN, E. D., N. Y.

IMPROVEMENT IN LOOKS FOR SPINNING-FLIERS.

Spccieationrforming part of Letters Patent No. 209,727, dated November 5, 1878; application'iled August 15, 1878.

To all whom it may concern:

Be it known that we, JOHN B. THORWARTH and MIKE HARRISON, both of Brooklyn, E.

D., in the county of Kings and State of Newv York, have invented a new and Improved Lock for Fliers of Spinning and Roving Frames, which invention is fully set forth in the following specication, reference being had to the accompanying drawing, in Which- Figure 1 represents a sectional side view of our improvement. Fig. 2 is a horizontal section in the plane x fr, Fig. 1.

Similar letters indicate corresponding parts.

This invention consists in the combination of a hollow tapering dier-neck, provided with a pin passing diametrically through it and having both ends firmly fixed .in the walls thereof, with a tapering spindle having a diametric open slot cut in its upper end, and having its lower end opening into a'diametric channel, which is arranged obliquely thereto, -so that after the locking-pin of the iiier has reached the bottom of the slot in the spindle it can be slightly turned into the oblique channel, and thereby the Hier is securely locked in its position.

1n order tov secure a ier to its spindle, it is the common practice to provide the upper end of the spindle with a key-seat for the reception of a feather-key, which is firmly fastened in the eye of the flier. This arrangement is not very safe. It allows the flier to rise up and to knock against parts ofthe frame,

Vand as it -rises it also turns, and the key-seat in the spindle becomes worn, While the flier is liable to be seriously injured. It has therefore been attempted to form two spiral keyseats in the spindle, one opposite to the other, or to form an L-shaped key-seat 5 but the operation of producing such seats is very dithcult and expensive, and the keys, which are fastened in the eyes of the fliers, are still liable to wear the sides of the key-seats and Work loose.

There has also beenused a flier-lock in which the neck of the-flier is provided with a short inwardly-projecting pin, which slides in a `longitudinal groove in the surface of the spindle, and when it reaches the bottom thereof may be turned under a shoulder formed by ing-pin is secured, the loose end being liable to be bent to one side.

Our lock consists of a plain round pin, a, which is, by preference, made of steel and hardened, and which extends transversely through the eye b of the flier A, having its opposite ends secured in the wall of the eye or neck of the flier, so that said pin is always held firmly in proper position.

The upper end of the spindle B is slightly tapering, and it is provided with an open slot, c, just wide enough to admit the locking-pin c. At the bottom of the slot e is formed an oblique channel, d, (indicated in dotted lines in Fig. 2,) so that when the locking-pin a has reached said bottom the flier can be slightly turned, thereby causing said pin to enter this oblique channel, as shown in the drawing, and prevent the same from rising in the slot c.'

By this arrangement the flier, after having been placed O11 the spindle and turned so as to bring the pin c in its locking position, is ei'ectually prevented vfrom rising; and since the strain of the yarn itself retains the pin a, in its locking position, the iiier is not liable to work loose, and a lock is obtained which is very simple and cheap in its construction, and which prevents the flier from getting injured by coming in contact with other parts of the machine or its ame.

What we claim as new, and desire to secure by Letters Patent, is-

The combination, with the .tapering flierneck, provided with the pin a extending dilahereux'loose:A our iiiltS anf Sllys (y metroally therethrough and having its op of Agls't, 1878. posite ends rmly fixed in the Wall thereof, of JOHN B, THORWARTH. [L. S.]

the tapering` spindle B, having the open lon'- his gitudinall slot; c out diametrically through its MlKE XKHARRISON. [L. S.j

mal

top, and the straight channel d, commnic'a'ting with the lower end of `said. slot, but nr- Witnesses: ran ged obliquely thereto, as and for the pur- JAMES HARRISON,

pose set forth. 0H`N HARISO.

In testimony than: We claim the foregoing We l 

